Solvent flushes like seafoam break junk off that clog things up. I personally had one jam a lifter up causing me to have to pull an engine part. Stay away from fast flushes they all run the same risk . Ive been using and selling amsoil for over 30 years and I wont use their solvent flush either. I use Auto Rx before converting old engines anymore. Nuff said.

I've seen seafoam break stuff loose fast enough to plug a oil pump pickup screen...it works, but on a really dirty engine, I'd worry about how fast it works. I had the same thing happen with Marvel in an engine that sat a while. It was a 3.0 Ford and had about 70,000 miles on it, it was in a car that had been totalled and I installed it in another car that had unrepairable engine damage. The owner wanted it put in and against my better judgement, I did it. He made it about 10 miles down the road and the engine oil light came on. Brought it back, pulled the oil pan and the pickup was plugged.

New Post From Old Board

Over on the other message board the Chief Amigo would like to divert your attention to several facts. 3-Rx and Auto-Rx are the same chemistry. Web press printing towers use to have to clean out old gear oils, contaminants etc with solvent technology MobilSol was the king ( until 3-Rx non solvent metal cleaner) cleaning metal gives you 2 choices 1-use a solvent and hope for no ancillary problems either with the machinery bearings or your lungs or how the change the solvent technology would effect your oil chemistry. 2-Now you have a product that does NOT change your oil viscosity, has no wear metal effect on bearings t is safe and just cleans. Our printers used 3-Rx in company cars,vans,etc and encouraged us to relabel 3-Rx to Auto-Rx. The rest is history. There is no damage to any oil lubricated part using Auto-Rx it just cleans SAFELY and Very Effectively, One last thing if oil could clean there would be no need for Auto-Rx or surely no solvent product. Thank You

Did you know that no oil change drains out everything that was in previous oil ? Would it make more sense to have a non toxic "green" chemistry still in your oil pan (still cleaning ) or a solvent thats going to create toxic residue for your new oil.

Products pushed by trolls as the latest in technology to clean your engine parts always turn out to be some form of an industrial solvent it can't be shipped by air , it can't be used in certain states (facts the message board shills overlook) as long as they can get you to buy. Check with the company whose product being "romanced' by these people , ask them if there can be any damage to your engine ? and BTW if it is so damn good for my engine , why can't i use it in my transmission ?